Edger



Jan. 13, 1931.

w. G. HAGMAIER ET AL EDGER Filed May 18, 192 8 2 Sheets-Sheet 1 Jan. 13, 1931. w. G.'HAGMAIER ET AL EDGER Filed May 18. 1928 2 Sheets--Shoot 2 7 position closely adjacent to the saws. The

look ng bar 39 is normally urged into looking engagement by means of a spring 4:0, and ,may be retracted. from engagement with the strip &1 lby;means [fire handle S134 pivotally associated withthe shifter handle 28 and operatively connected to the rod 39 by means of a link 3.8. v

A The brackets 24 are laterally shiitable along the channel bars 29 ,i30-by virtue of their cooperation with a constantly traveling power driven chain 33 having-upper and lower stretches or runs 37, 36 respectively extending longitudinallyiin ffrontzo'f the edger and passing through transverse openings in the brackets 24. 'It w'ill be apparent that when the chain '33 is driven, the upper 11111137 will travel in one direction, and the lower run 36 will simultaneously travel "in the opposite direction, so "that if a bracket 24 s is connected *withleither off the chain runs, it may be automatically shifted in a desired direction, thereby simultane- 'ous'ly shifting the corresponding saw *2 along the arbor'3. The shifter actuating lever 28 is pivotally associated with *the braclret :24 and extends between the chain runs; The flever :2'8'lS provided with clamping grip blocks which upon movement of "the lever 28 in vertical plane are engageable with the adjacent surfaces of t-hefchain runs 36, -37. The bracket E l is provided with other grip blocks located in vertical alinement with the blocks 35 of the 'bver- 28,-and cooper'able with {the ou'ter'surfi-aces of the-chain runs 3 6. 1 The arrangement is obviously-such that when the lever 28 is shifted vertically and the locking-bar 39 has been retracted, either of the chain runs 36, 37' maybe firmly gripped Zbetwe'en the adjacent grip blocks of *the lever '28 and of the bracket 24, thereby causing the bracket "to shift laterally; By virtue of the anti-frictionsupports afforded byxthe f rollers 1-9, 25, 27,-the brackets 24 may also be readily shifted manually by merely applying- "horizontal pressure to the levers 2 8; The degree oifshiiting may be readily determined by means of a ;-gage'21 disposed at'thefirontpf the mechanism. c The mechanism for transporting the (ma- "terial toward' and away tromthe saws-2 comprises rearnand' front feed rolls, "5, 6 respectively, which are-being constantly rotated during 7 operation *ofthe jmachine. Above these feed rolls, rthe press-rolls "8', 9

"are adj ustably 'CllSPOSGCLithB press rolls being relatively heavy in structure so as "to-urge the material in contact'with the corrugated "feed rolls to thereby insure Ipositivetransrportat'ion of the material. The press rolls 8', 9 are sWingablysupported from ivots '15 by means of arms 10,11and-mayeraised :away vfrom the-feed rolls by means of a fiui d actuated piston 43 disposed within an acturolls.

ating cylinder 42 as shown in detail in Fig. 3', The fluid under pressure may be admitted to the'cylinder42 above the piston 43 through a control valve 50 which is operable by;means of lever 49 pivotally :associated with a valve actuating rod 18, and extending throughout the length of the edger. The. iston AQEisconnectedto a vertical conrnecting rod 44.11; means of a 'pivoth'l and the flower portion est-the {rod 44: is provided with transverse teeth 46 having openings ltherebetween. The teeth 46 are cooperable with the teeth Q7 of gear segments 45 which are rigidly attached -to the pivots 15 of the press rolls 8, 9. The arrangement is such that when the piston 43 is moved downwardly, the press rolls 8, ,9 are lifted, and the openings between the teeth 46 oif the rod, will positively prevent filling of the gaps between these teeth by sawdust. The pi-v0; 5'7 permits the rod 414 to swing freely and to thereby avoid undesirable lateral displacement of the piston 43 due to excessive pressure applied to the pressrolls, or inaccuracies the formation of the teeth 46, 47.

The fluid pressure actuated mechanism for raisin 'the ress 11-01158, 9 :is located at one n a .7 V V 7 "pressure above the piston 43 is released, is

provided at the medial portionsof the press This cushioning Ciel 1C6 comprises a cylinder 13 pivotally associated abfits medial portion with a bracket 17 which is rigidly secured to one of the press roll carrier arms 10. Located within the cylinder .13 ,is a piston 20 secured to a piston rod 12, the outer'end of which is secured to a pivot block 18. The piston ,ZOfis provided with one or more relativelysmall through openings 23 for permitting the gradual passage of fluid confined within the cylinder 13, from one side ofthe piston QOt-o theo'ther. Stuffing-boxes 22 cooperate with the rod 12 to prevent escape of fluid homwithin the cylinder 13. The blocirlS is" pivotally associated with a bracket lfrigidly attached to the press roll carrier arm 11. The mechanism obviously functions to check the fall of thepress rolls '8, 9 and to bring these rolls 7 lntof gradual engz'rgement with the Located beneath the medialportion of the edger, is a transverse shaft 52 :which pivotally supports .a bri,dge 51. .lVith ithe edgerfiin' operation, the bridge lies rflat against the, floor as-shcwnflinFig. 1,. but the bridge may be raised shown in-dot and dash-infiE i-g. 2, in order to provide ;a term:

' porary sup'portlfor the arbor 3while the saws 2 are being removed from' an v end thereof. The bridge manipulating mecha- The hand wheelfit is con- 'nected with a, collar 55 which may be brought into engagement with a jbrjacket 53 in order to raise the bridge 51 into contact with the arbor 3 after having been righte'd,

During normal operation of the edger the, p v p p tiverneans for", enabling 'rapid and" safe "in-' saws 2 are set in the proper positionfrela tively'to the arbor 3; this preferably being accomplished while the saws and the arbor arerotating. The material to be sawed is then advanced between the front feed rolls 6 and the corresponding press roll 9, whereupon it is fed rearwardly past the saws 2 and-between the rear feed rolls 5 and the f I press' -roll 8,bein g delivered from the latter in sawed condition. v

. If it is desired to adjust one OP-DTOIGOLE the; saws 2 longitudinally of the" arbor 3, it

is only necessary for the operator to grasp the lever 28 and the handle 34 and'toinitially release the lock by retracting the lock ing rod 39? Depending upon the direction in which the released saw is to' e shift d the operator subsequentlyeither raises 0r g 30 lowers the le'v'er .28, "thereby causing the chain to automatically shift the saw 2 in c to neutral position1 The adjusted saw may then be'loeked' in theznew position by re lease of the lever 34 in an ObVlOllSlnitllIlGlfij I It Will'be a pareaeum the guide rollers 19, 25; 27 permit rapid shifting of thesaws either by poweror manually with min mum,

waste of effort, and the gage 21 provides simple means for determining the cut; The r shoeslv and rollers 19 carried by thebrackf thereof. j

ets 24 closely adjacent to the saws, obviously prevent possible displacement of the shifter mechanism so as to produce buckling. of

the saws; such buckling is also avoided by locat ng the locking mechanisrn or strip 27 eliminates all dangerof movement of the shifters, and nsures V absolute rigidity .JyIf a larger piece ofmaterial is to bepassed through ,the ed'ger the press rolls 8, 9 may be simultaneously and quickly "raised by manipulating the 'lev'er 49. .Such manipu lation ofjthe -lever=et9actuates the valve 50 i thereby admitting fiuid 'under pressure to the cylinder 42 and quiokly'raising'the press mus; When the piece'has entered the gap between the front/press roll 9 and thefeed -rolls 6, the fluidzunder pressurefniay be 'released from the cylinder 42ithereby per i mitting the press rolls to'lower" into engage-- ment. with the material. The lo'weringmoeushionlng 'Llettersi Patent 1 I afluid'cushion actingindependently the desired direction until the shifting motion is stopped by return of the lever 28 transporting material relative v of; 1d 1} 4;l closely adjacent to thesaws; The three; Y s pointsupport afforded by the rollers 19, 25,

poss ssor the -ca rieraims lisrbye id *r l p ct w relatively heavy piress' rolls and the, in

The pivotal connection; between the p stoii o and therod-iavoids possible buckliiigl of iime'ifi i th; s ci ted wit ul s:

the piston"and the:fopeningsibetween the teeth 46' al's'o' 'a ss t n eliminating buckling tendencies/ f a The bridge '51 provides'ff si'rnple ana sa e sertioii "and removal of saws-2 without dis-j tui 'bingfthearbor" 3, and therell'ers58i 1 and fdescr-ibed foriv'arious modifie nuns; within the Seep-e05 the slums cur toj'personsjskilledin thea I-t' is? clai'nied and desir d to lnjcombination,a'saw, means'fb tr 3 ting material,- relatively to "s insporting mea eryguuaggige frelativelyffto transporting-1 means; and means prov v transporting materialrelatively "to said saw, a press roll I for i irrg said material i said feedioll, means Pre s 331F611" fe t v i means "providing" a 7 dep d n y airr s ro l f ii insgsaid n sa d 'fe'ed roll "mean adjustmntthereofQ 4. In combination-fa saw, a feed roll ro 1 5 12o tatable about a fixed horizontal axis for transportin'grmaterial relatively to saidsaw a press rollilpivotallyjsupportedabove said d ust 1 d if a 'p e sure actuatedine'ansf 'coactingfwith a portion of said press ro'llremote from said end and acting independently, of said adjusting" means for cushioningsaid-press'roll duringfl feed roll- ;fojr' urging,saidi materialagainst V I v7 said feed rollg -fiuidpr essureactuatedfmeans for moving' s'aid press roll about its supportf ing pivot,. and resilient-fluid pressurefactu i ated means actingjindependently of saidfad? Y justing rnean'sfori cushioning said, press roll'f duringad ustmentithereoflIv g 5 11 omb om a pl al y Of saw a: ub] I issd 9 isvzt wmfiis atanisl: la ivss lysaws; s atiiiely; 19mg- Pmss 91 fs migingi mamma agaixlstl ai f-ssd $911,: fluid: iii'qssum asinatgd 9 91112 ingwith 34.1; wi l Qf. s id; Pmss 119 5 591: ming l s sammLahiwlft-Q said feed 1, Mid. fiui pressin li itfiai op mis; 592% 'Wi lk msdiaL: n zt i Qii said "Press 1 1;; indai'z nilem y 0i said and: justing means, 'for cushioning saii ppgss ggll dusixig its QHUWIQPHWL- r Qmh' at mim saw, i si-m ls 19 i Qai'sd'i 0.1; spg sii s st sa d. saw- 42; tziia spqxi ngq t imlzd and wax fiimxiisaiil saws P ir o tigxessr lls 9 1: ing said matiial'against said feegi LQMS, max-is... iq adjus ing, 5m mas IiQLlS; zel tiY l-y s said." 4 r" 1s., nds fluid pneissnrre whisked; 9 1s sw ng; mensfl ommanfto said ess 911 m w ii mepsndently i said s mans, i9 2 heszkiig fihsz miw inent thereof wns. mg fl d, Halls Qomb n i. a, @QWJQQQWHS 1 transporting matrial towei g l sway ir mi said; ism aespxze vs, mill, liqm l' bi" flii si un ls pr sf uxsfrom; eac Qi Said isssl. 1155 fl 7 pnessu i 'tuamd ushicm ng me S astin 'indepsnde t y Oi sari pr ss? wi l; sing imans to. heszk" the m wiiexit qf, eash oi; s id pr s 7- 115 mwai d hs adiacsnt fislsdfrpl -s 1 iii J I Q binlstigm Pll ilf i i y i, t tfl-table about q mmq i 'fsed r s, lo; cated. Q11; qppqs ts sids Qf thsfaxis, o et *5, tqwar'd saidiseda mills,

oward, and w y imm: h ma s roll pivot a lly ,sufipontsd. ab ve e h; Q said I .iesd mll 0iurging; ma e ia a thereagaissm:

40 mq ng. all Qisaid; press i l away mm th adi' wsnt; ,i fil lls a d fluid I pressure actuated means actin independgnjg; 1}; 0i; a d mo ng means 121: u li p i g said me s olls d fil ing mwemsnt thsm zf I t stimmiy. w xe i j thf sigfistiiw s Qf thflr mirs i on itsafl ed' erem.' I ILLIAM I 

